Aquaporins in the male reproductive system: A chance for paternity or a road to nowhere?

Aquaporins—small, "unusual" proteins, whose discovery revolutionized the view of membrane transport of water and other small molecules, are essential for all living organisms. Aquaporins located in the male reproductive system seem to play a key role in the proper course of many processes occurring within it, thus maintaining a high reproductive potential. [ABSTRACT FROM AUTHOR]